Why are Medicare and Medicaid shown separately instead of combined?

They come from two different CMS data sources with no shared claim identifier, so they can't be reconciled into one number without double-counting or guessing. Every table and chart on this page keeps them fully separate.

Why is there no private/commercial revenue figure?

Private and commercial payer data comes from Transparency in Coverage files, which only publish negotiated rates — not claims or utilization volume. Without a volume figure, no revenue number can be computed for any provider from that data.

What does "Rank" mean in the Competitive Analysis & Benchmarks tables?

For a given CPT/HCPCS code, it's this provider's position by claims volume among all providers billing that same code at that geography level (State, National, or Iowa for Medicaid) — rank 1 means the highest claims volume for that code.

Why is the Medicaid comparison limited to Iowa only?

Medicaid is administered per-state with no single national fee schedule, so a state or national comparison the way Medicare has one isn't available. Iowa (this provider's own state) is the only grouping that's conceptually meaningful.

Why are the numbers rounded to the nearest 10?

To avoid implying more precision than the underlying data supports at a single-provider level. Ratios are kept precise since they're a relative comparison, not a volume or dollar figure.

How current is this data?

The Medicare and Medicaid tables are both single current snapshots, not refreshed on a recurring schedule yet.

Grant Warren (NPI 1255948659)

Field	Value
Entity Type	Individual
Organization	Grant Warren
Address	6001 Westown Pkwy
City	West Des Moines
State	IA
ZIP	50266
Taxonomy	Family Nurse Practitioner
NPI Enumerated	September 29, 2020

Payer Source	Total Paid
Medicare	$3.8K
Medicaid	$0

Medicare: Complete Services Breakdown

The CPT/HCPCS codes generating the most Medicare revenue for this provider.

6 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
25447	The provider performs arthroplasty (joint replacement) of the intercarpal joints (between the small bones in the wrist) or carpometacarpal joints (where the carpal bones of the wrist meet the…	20	$80	$1.4K
29075	The provider applies a cast encasing the lower arm. A short arm cast treats fractures of the bones in the lower arm and corrects deformities of the hand and wrist.	20	$50	$970
26480	In this procedure, the provider transfers or transplants a tendon in the carpometacarpal area or the back of the hand. The carpometacarpal area is the articulation of the wrist’s carpal bones with…	20	$40	$660
25210	In this procedure the provider removes any one of the eight carpal bones in the wrist area.	10	$30	$350
Q4010	Cast supplies, short arm cast, adult (11 years +), fiberglass	20	$20	$320
J3301	Injection, triamcinolone acetonide, not otherwise specified, 10 mg	50	$1	$50

Medicare: Competitive Analysis & Benchmarks

How this provider's Medicare billing volume and revenue compare to other providers nationally and within its state, across 6 CPT/HCPCS codes.

View: State1 / 2

Claims Volume vs. Iowa Distribution

Grant Warren — 0 of 6 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Iowa

Full comparison — all codes billed, vs. state median

6 rows

CPT/HCPCS Code	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
25447	6	10	20	$500	$10.6K
26480	5	10	20	$490	$9.8K
25210	1	10	10	$100	$1.4K
29075	5	10	20	$60	$1000
J3301	370	430	180	$1	$440
Q4010	7	30	20	$20	$330

Related Providers

Other providers that share a Tax Identification Number (TIN) with Grant Warren, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
David Vittetoe	IA	Orthopaedic Surgery Physician	$384.4K	$0
Mark Isaacson	IA	Orthopaedic Surgery Physician	$335.5K	$0
Barron Bremner	IA	Orthopaedic Surgery Physician	$232.8K	$0
Thomas Dulaney	IA	Orthopaedic Surgery Physician	$229.6K	$0
Matthew Dewall	IA	Orthopaedic Surgery Physician	$226.9K	$0
Nicholas Honkamp	IA	Orthopaedic Surgery Physician	$169.6K	$0
Zachary Ries	IA	Orthopaedic Surgery Physician	$167.3K	$0
Ian Lin	IA	Orthopaedic Surgery Physician	$160.8K	$0
Christopher Nelson	IA	Adult Reconstructive Orthopaedic Surgery Physician	$156.7K	$0
Patricia Kallemeier	IA	Orthopaedic Hand Surgery Physician	$143.8K	$0

Grant Warren — Billing Profile & Reimbursement Data

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Grant Warren — Billing Profile & Reimbursement Data

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Medicare: Total Revenue Breakdown by CPT/HCPCS Code

Medicare: Complete Services Breakdown

Medicare: Competitive Analysis & Benchmarks

Related Providers

Frequently Asked Questions

References